57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
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#ifndef __LWIP_DRIVER_H_
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#define __LWIP_DRIVER_H_
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#include <minix/endpoint.h>
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#include <minix/ds.h>
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#include <lwip/pbuf.h>
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#define NIC_NAME_LEN 6
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#define DRV_NAME_LEN DS_MAX_KEYLEN
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#define TX_IOVEC_NUM 16 /* something the drivers assume */
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struct packet_q {
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struct packet_q * next;
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unsigned buf_len;
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char buf[];
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};
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#define DRV_IDLE 0
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#define DRV_SENDING 1
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#define DRV_RECEIVING 2
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struct nic {
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unsigned flags;
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char name[NIC_NAME_LEN];
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char drv_name[DRV_NAME_LEN];
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endpoint_t drv_ep;
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int is_default;
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int state;
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cp_grant_id_t rx_iogrant;
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iovec_s_t rx_iovec[1];
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struct pbuf * rx_pbuf;
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cp_grant_id_t tx_iogrant;
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iovec_s_t tx_iovec[TX_IOVEC_NUM];
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struct packet_q * tx_head;
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struct packet_q * tx_tail;
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void * tx_buffer;
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struct netif netif;
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unsigned max_pkt_sz;
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unsigned min_pkt_sz;
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struct socket * raw_socket;
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};
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int driver_tx_enqueue(struct nic * nic, struct pbuf * pbuf);
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void driver_tx_dequeue(struct nic * nic);
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struct packet_q * driver_tx_head(struct nic * nic);
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/*
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* Transmit the next packet in the TX queue of this device. Returns 1 if
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* success, 0 otherwise.
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*/
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int driver_tx(struct nic * nic);
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int raw_socket_input(struct pbuf * pbuf, struct nic * nic);
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#endif /* __LWIP_DRIVER_H_ */
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